Full-Stack Developer (Next.js, Node.js & AI Integration) for SaaS MVP Build

We are looking for a skilled, product-oriented Full-Stack Developer to help us build and launch a high-performance SaaS MVP / AI-powered web application. You will take full ownership of the feature development—handling everything from backend architecture and database design to frontend UI and deployment. We value clean code, quick turnaround times, and clear, plain-English communication regarding technical tradeoffs. Key Responsibilities: - Develop scalable web applications using Next.js, React, and Node.js / Express. - Integrate third-party APIs and AI workflows (e.g., OpenAI API, LLMs, NLP pipelines). - Design and manage database schemas using PostgreSQL or MongoDB. - Implement secure user authentication (JWT, OAuth, session management) and payment gateways (Stripe). - Build clean, responsive UI components (Tailwind CSS, Material UI) optimized for speed and user experience. - Containerize and deploy applications using Docker and Vercel. Required Skills & Experience: - Frontend: React.js, Next.js, TypeScript, JavaScript, Tailwind CSS. - Backend: Node.js, Express.js, REST APIs, GraphQL. - Database: PostgreSQL, MongoDB, Supabase, Prisma ORM. - AI & Integration: OpenAI API, custom AI prompt workflows, third-party API integrations. - DevOps & Tools: Git, GitHub, Docker, Vercel, Firebase. - Soft Skills: Strong problem-solving, proactive communication, and ability to translate requirements into shipped features independently. Nice-to-Have: - Experience with React Native for mobile app cross-compatibility. - Background in real-time features (WebSockets, router/hardware APIs, audio analysis). - Previous experience building and launching multi-tenant SaaS MVPs for startups. Project Details & Budget: - Job Type: Fixed-Price - Project Duration: 1 to 3 months - Workload: 20–30+ hours/week. How to Apply: Please submit a brief proposal including: - Links to 2–3 live web apps or SaaS platforms you have built (specifically built with Next.js/Node.js and featuring AI integration). - A short summary of your experience handling both frontend and backend independently. - Your availability to start.